I want a good and STABLE wireless adapter (unlike this netgear n900 bullshit) that can handle up to 300+ mbps speeds for gaming. Can pretty much afford anything within reason but I need it quickly, my motherboard is a asus z97 pro4 and only has the gpu slot used as far as pcie, meaning there are 3 slots available still. This is relatively urgent considering both my job and entertainment revolve around this. Hard wired is NOT an option. Thanks.